44181981360 has 1200 divisors, whose sum is σ = 188919685152. Its totient is φ = 9455616000.

The previous prime is 44181981331. The next prime is 44181981391. The reversal of 44181981360 is 6318918144.

44181981360 is a `hidden beast` number, since 441 + 8 + 198 + 13 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 437445310 + ... + 437445410.

Almost surely, 2^44181981360 is an apocalyptic number.

44181981360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44181981360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94459842576).

44181981360 is an abundant number, since it is smaller than the sum of its proper divisors (144737703792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44181981360 is a wasteful number, since it uses less digits than its factorization.

44181981360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 44181981360 in words is "forty-four billion, one hundred eighty-one million, nine hundred eighty-one thousand, three hundred sixty".